PCF8549 datasheet(2/36 Pages) PHILIPS

2 / 36 page

1997 Nov 21

Philips Semiconductors

Product speciﬁcation

× 102 pixels matrix LCD driver

PCF8549

FEATURES

• Single chip LCD controller/driver

• 65 row and 102 column outputs

• Display data RAM 65 × 102 bits

• On-chip:

– Generation of LCD supply voltage

– Generation of intermediate LCD bias voltages

– Oscillator requires no external components (external

clock also possible)

• 400 kHz Fast I2C Interface

• CMOS compatible inputs

• Mux rate: 65

• Logic supply voltage range VDD1 − VSS: 1.5 to 6 V

• Voltage generator voltage range VDD2/2_HV − VSS:

2.4 to 5 V

• Display supply voltage range VLCD − VSS: 7.0 to 16 V

• Low power consumption, suitable for battery operated

systems

• Temperature compensation of VLCD

• Interlacing for better display quality

• Slim chip layout, suited for chip-on-glass applications.

APPLICATIONS

• Telecom equipment

• Portable instruments

• Point of sale terminals.

GENERAL DESCRIPTION

The PCF8549 is a low power CMOS LCD controller driver,

designed to drive a graphic display of 65 rows and

102 columns. All necessary functions for the display are

provided in a single chip, including on-chip generation of

LCD supply and bias voltages, resulting in a minimum of

external components and low power consumption. The

PCF8549 interfaces to most microcontrollers via an

I2C interface.

Packages

The PCF8549U/2 is available as bumped die. Sawn wafer

as chip sorted in chip tray. For further details see

Section “Bonding pads”.

Customized TCP upon request.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

PCF8549U/2/F1

TRAY

chip with bumps in tray

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